Open AccessRadioAstron project: calibration of the space radio telescope in flight in 2011–2019
Author(s) -
Yu. A. Kovalev,
V. I. Vasil’kov,
Anton Ermakov,
E. N. Vinyaĭkin,
M. M. Lisakov,
M. B. Popov,
V. A. Soglasnov,
М. Г. Ларионов,
N. Ya. Nikolaev,
E. N. Mironova,
M. S. Burgin,
Y. Y. Kovalev,
P. A. Voitsik,
A. Kutjkin,
A. V. Alakoz,
Н. Н. Шахворостова,
K. G. Belousov,
A. V. Kovalenko,
N. A. Nizhelsky,
Г. В. Жеканис,
P. Tsubulev
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.011
Subject(s) - physics , calibration , amplitude , noise (video) , remote sensing , astrophysics , radio telescope , telescope , astronomy , optics , computer science , geology , quantum mechanics , artificial intelligence , image (mathematics)
We present results of amplitude calibration of the RadioAstron Space Radio Telescope (SRT) at wavelenghts of 1.35, 6.2,18, and 92 cm. Flux density calibrated internal noise signals and SEFDs are found to be stable within the errors at thelevel of 3–13%. We have used the ux density scale by Baars et al. (1977). The known issue of the variability of calibratorswas resolved performing comparison with two other ux density scales. We have resolved the issue by averaging SRT noisediode signals measured relative to Cassiopea A and Crab Nebula.